Refrigerating apparatus



Jan. 5, 1932.

DE WITT H. WYATT REERIGERATING APPARATUS Filed July 30, 1928 III Patented Jan. 5, 1932 UNITE ll STATES PATENT OFFICE DE WITT H. WYATT, OF DAYTON, OHIO, ASSIGNOB TO FRIGIDAIRE CORPORATION, OF DAYTON, OHIO, A CORPORATION OF DELAWARE REFRIGERATING APPARATUS Application filed July 30,

This invention relates to refrigerating apparatus and more particularly to a refrigerating apparatus adapted to cool drinking water or the like.

An object of this invention is to provide a. refrigerating apparatus adapted to be used with a demijohn or the like and which is easily kept clean.

Another object of this invention is to provide a vertical water receptacle adapted to be cooled by a flooded type of boiler having a substantially standard type of float valve controlled assembly.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred form of the present invention is clearly shown.

In the drawings: V

Fig. 1 is a vertical cross sectional view partly in elevation of a water cooling device embodying features of my invention.

Fig. 2 is a view similar to Fig. 1 taken at right angles thereto.

Fig. 3 is a horizontal sectional view of the water receptacle and boiler assembly.

An apparatus embodying features of my invention may comprise in general a cabinet generally designated as 20 adapted to support a demijohn generally designated as 21. If desired, a food storage compartment 22 may be provided with a hinged door 23. The compartment 22 may be made of a substantially rectangular lining 24 provided with an outwardly directed flange 25 adapted to rest on a substantially. rectangular wooden frame 26. The wooden frame 26 is adapted to be supported by a metal angle frame 27 having horizontal and vertical members 27 a and 27 b respectively, for forming the main portion of the frame. Suitable insulation 28 may be secured to the lining 24 as by bituminous cement or the like. A square or rectangular wooden door jamb 29 may be provided with trim 30. Suitable outside panels 31 may be attached to the metal frame work 27.

A. water cooling unit may comprise a vertical water receptacle 40, which preferably may be cylindrical. This receptacle may be 1928. Serial No. 296,260.

porcelain lined metal, if desired. It may be provided with an outwardly directed flange 41 for attaching the same to the plate 42 adapted to rest on a shoulder 43 of the lining 24. The refrigerant evaporator may comprise a substantially horizontal boiler 44,

preferably cylindrical in its main contour.

The boiler 44 may be provided with a vertical extension 45. This vertical extension may have its main contour of a cylindrical shape and preferably it may be made coaxial with the receptacle 40. The main portion 44 of the boiler and the extension 45 may be suitably welded or brazed together to form a substantially integral connection between the two and to provide a refrigerant liquid and gas space in common between the boiler 44 and its extension 45.

The boiler 44 may be provided with a float controlled refrigerant inlet and a refrigerant outlet assembly. For this purpose, a metal casting 46 may beattached to the boiler 44. This casting 46 may be provided with suitable bolt holes 47 A flange 48 may be secured to the boiler 44 on the outside thereof. The members 46 and 48 may be secured by brazing or welding the parts to the boiler 44. A plate 49, adapted to carry the float controlled refrigerant inlet and outlet fittings, isz secured to the casting 46 by means of bolts 4 a.

The plate 49 is also provided with valve fittings 50 and 51 for connecting the refrigerant outlet pipe 52 and the liquid refrigerant pipe 53 with the interior of the boiler 44. -A suitable metal ring 54 may he used to bolt the flange 48 to the lining 24 as shown in Fig. 1. The float valve assembly together with the refrigerant outlet fittings may be of the type described in the French patent to Security Trust Company 547,971 published December 29, 1922. Liquid refrigerant may be supplied to the boiler 44 and may be removed therefrom by means of a refrigerant liquefying unit placed in any convenient location. For instance. the unit may be placed in the lower portion of the cabinet. The refrigerant liquefying unit may be. of any suitable type. such as of the automatic mechanical compressor type.

The bottom of the water receptacle 40 may be provided with a water outlet 61 leading to a valve fitting 62 for delivering cooled water. A suitable drain pan 63 may be secured to thecabinet in which the waste water may be deposited. The cabinet may be provided with telescopic lids 65 and 66 having telescoping openings and a gasket 67 for the reception of the demijohn 21.

It is apparent that the receptacle 40, because of its shape, may be very thoroughly and easil cleaned. If the interior surface is enameled the cleaning operation is rendered even more adaptable to cleaning. The capacity of the receptacle 40 may be increased either horizontally or vertically. It is apparent that by increasing the vertical dimension of the receptacle 40 and by also increas ing the vertical dimension of the extension 45 the capacity for cooling water may be greatly augmented. It is apparent that a long path may be provided for thermal contact between the water in the receptacle 40 and the liquid refrigerant in extension 45. This is a. great advantage since the thermal conductivity between liquids is ordinarily far greater than between a liquid and a gas. As the water descends in receptacle 40 with use it is gradually cooled by the refrigerant in extension 45.

While the form of embodiment of the invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. A water cooling device comprising a vertical water receptacle having an outlet connection below the top of said receptacle, means for controlling flow of water from said outlet, a horizontal refrigerant boiler adjacent said receptacle and an extension from said boiler surrounding vertical parts of said receptacle, said extension having a refriger ant liquid and gas space in common with said boiler.

2. A water cooling device comprising a vertical water receptacle having an outlet connection below the top of said receptacle. means for controlling flow of water from said outlet, a horizontal refrigerant boiler having a float controlled refrigerant inlet adjacent said receptacle and an extension from said boiler surrounding vertical parts of said receptacle, said extension having a refrigerant liquid and gas space in common with said boiler.

3. A water cooling device comprising a eylindrical water receptacle, a horizontal cylindrical refrigerant boiler having an extension substantially surrounding the vertical wall of said receptacle, said extension comprising a vertical cylindrical wall substantially integral with the horizontal cylindrical wall of the boiler.

'from said boiler surrounding vertical parts of said receptacle, said extension having a refrigerant liquid and gas space in common with said boiler and a removable float controlled refrigerant inlet and refrigerant outlet assembly connected to said boiler.

6. A water cooling device comprising a vertical water receptacle having an outlet connection below the top of said receptacle, means for controlling flow of water from said outlet, a horizontal refrigerant boiler having a float controlled refrigerant inlet adjacent said receptacle and an extension from saidboiler surrounding vertical parts of said receptacle, said extension having a refrigerant liquid and gas space in common with said boiler and a removable float controlled refrigerant valve inlet and refrigerant outlet assembly connected to said boiler.

7. A water cooling device comprising a vertical cylindrical water receptacle, a horizontal cylindrical refrigerant boiler having an extension substantially surrounding the vertical wall of said receptacle, said extension comprising a vertical cylindrical wall substantially integral with the horizontal cylindrical wall of the boiler and a removable float controlled refrigerant valve inlet and refrigerant outlet assembly connected to said boller.

8. A water cooling device comprising a vertical cylindrical water receptacle, a horizontal cylindrical refrigerant boiler having an extension substantially surrounding the vertical wall of said receptacle, said extension comprising a vertical cylindrical wall substantially integral with the horizontal cylindrical wall of the boiler, said vertical cylindrical wall being coaxial with said inceptacle and a removable float controlled rcfrigerant valve inlet and refrigerant outlet assembly connected to said boiler.

9. A water cooling device comprising an insulated liningfor thereception of food or the like, a water cooling device in said lining comprising a water receptacle surrounded by a refrigerant evaporator, the ovaporator having thermal contact with the water in said receptacle and with the air in said lining, a water passage for introducing water from the exterior of said lining into said water receptacle, and a water passage for withdrawing water from said receptacle.

10. A water cooling device comprising an insulated lining for the reception of fo'od'or the like, an evaporator in said lining having a cylindrical shell, a water cooling device in said lining comprising a vertical cylindrical water receptacle surrounded by said cylindrical shell of said refrigerant evaporator,

the evaporator having thermal contact with the water in said receptacle and with the air in said lining.

11. A combined water cooler and food refrigerator comprising a cabinet having an insulated food compartment, a water cooling device within said compartment and spaced from the walls thereof to provide food storage space, said water cooling device comprising a vertical cylindrical water receptacle, a horizontal cylindrical refrigerant boiler having an extension substantially surrounding the vertical wall of said receptacle, said extension comprising'a vertical cylindrical wall substantially integral with the horizontal cylindrical wall of the boiler, said vertical cylindrical wall being coaxial with said receptacle and a removable float controlled refrigerant valve inlet and refrigerant outlet assembly connected to said boiler.

12. A combined water cooler and food refrigerator comprising a cabinet havingan insulated food compartment, a water cooling device within said compartment and spaced from the walls thereof to provide food storage space, said water cooling device comprising a vertical water receptacle, a refrigerant evaporator surrounding said receptacle, a water passage from the exterior of said cablnet for introducing water into said receptacle, a water passage from said water receptacle to the exterior of said compartment for withdrawing cooled water from said water receptacle.

13. A combined watercooler and food refrigerator comprising-a cabinet havin an insulated food compartment,'a water'coo in device within said compartment and space from the walls thereof to provide food storage space, said water cooling device comprising a vertical cylindrical water rece tacle, a horizontal cylindrical refrigerant ilcr having an extension substantially surrounding the vertical wall of said receptacle, said extension comprising a vertical cylindrical wall substantially integral with the horizontal cylindrical wall of the boiler, said vertical cylindrical wall bein coaxial with said receptacle and a remova le float controlled refrigerant valve inlet and refrigerant outlet assembl connected to said boiler, a water passage rom the exterior of said cabinet for introducing water into said receptacle,a water passage from said water receptacle to the exterior of said compartment for withdraw ing cooled water from said water receptacle.

14. A water cooling device comprising a cylindrical water receptacle, a float valve refrigerant chamber, a float controlled expansion valve in said chamber, a cylindrical extension substantially surrounding the vertical wall of said receptacle and substantially coaxial with said receptacle, said extension being connected with said float valve refrigerant chamber for maintaining a body of liquid refrigerant in said extension.

15. A combined water cooler and food refrigerator comprising a cabinet having an insulated food compartment, a water cooling device Withinsaid compartment and spaced from the walls thereof to provide food storage space, said water cooling device comprising a cylindrical water receptacle, a float valve refrigerant chamber, a float controlled expansion valve in said chamber, a cylindrical extension substantially surroundlng the vertical wall of said receptacle and substantially coaxial with said receptacle, said extension being connected with said float valve refrigerant chamber for maintaining a body of liquid refrigerant in said extension.

16. A water cooling device comprising a water receptacle having an openin at the top for the reception of an inverted bottle, and an outlet at the lower portion for the discharge of the cooled water, a horizontal refrigerant boiler provided with a float controlled refrigerant inlet and havin an extension substantially surroundin t e vertical wall of said receptacle, sai extension comprisin a vertical wall substantially integral with the horizontal wall of the boiler.

In testimony whereof I hereto afiix my signature.

DE WITT H. WYATT. 

